Stairclimbing kinematics on stairs of differing dimensions.
Stairclimbing kinematics on stairs of differing dimensions.
复制标题
不同尺寸楼梯上的爬楼梯运动学。
DOI：
10.5555/uri:pii:000399939190174h
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发表时间：
1991
影响因子：
4.3
通讯作者：
S. Olney
中科院分区：
文献类型：
--
作者：
Lori A. Livingston;Joan M. Stevenson;S. Olney
本研究的目的是提供一个运动学描述的任务楼梯上升和下降。15名女性被分为矮、中、高三个受试者组。使用了三个具有不同竖板和踏步尺寸的测试楼梯。时间和电影摄影数据同时收集，分别通过开关和高速摄像机。爬楼梯步态周期持续时间，摆动和站立相持续时间，节奏和速度的措施似乎是系统相关的主题身高。站立（19%至64%）和摆动（36%至81%）阶段的持续时间变化很大，这取决于楼梯下降过程中的楼梯尺寸。在爬楼梯的任务中，观察到站立（50%至60%）和摆动（40%至50%）值的变化较小。个体似乎通过改变膝关节的屈曲/伸展模式而不是踝关节或髋关节的屈曲/伸展模式来调整楼梯尺寸。根据所爬楼梯的不同，需要83度至105度的膝关节屈曲角度。楼梯的尺寸，因此，出现在爬楼梯的下肢的时间和角度运动学的影响。
The purpose of this study was to provide a kinematic description of the task of stair ascent and descent. Fifteen women were divided into short, medium, and tall subject groups. Three testing staircases of different riser and tread dimensions were used. Temporal and cinematographic data were collected simultaneously via switchmats and a high-speed camera, respectively. Measures of stairclimbing gait cycle duration, swing and stance phase durations, cadence, and velocity appeared to be systematically related to subject height. Stance (19% to 64%) and swing (36% to 81%) phase durations varied considerably depending on stair dimensions during stair descent. Less variation was observed in stance (50% to 60%) and swing (40% to 50%) values during tasks of stair ascent. Individuals appeared to adjust to stair dimensions by varying the flexion/extension patterns of the knee rather than those of the ankle or hip. Depending on the staircase climbed, knee flexion angles ranging from 83 degrees to 105 degrees were required. Stair dimensions, therefore, appeared to influence the temporal and angular kinematics of the lower limb during stairclimbing.